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Official data from INPI

ENVELOPE COM DISPOSITIVO DE FECHAMENTO

Prazo de SigiloInvention Patent

Application data

Number

PI8903982

Type

Invention Patent

Filing

08/08/1989

Publication

02/13/1991

Progress at the INPI

  1. Filing08/08/89
  2. Publication02/13/91
  3. Examination06/15/93
  4. Allowance12/13/94
  5. Grant07/25/95
  6. Expired12/22/09

The letters patent expired on 12/22/2009: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 11/21/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

E. N. (pessoa física)

RJ, BR

Inventors

E. N. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

11/21/1989

RPI 996

Carta-patente expirada

#21.1

Patente extinta em 08/08/2004

12/22/2009

RPI 2033

Concessão da patente

#16.1

07/25/1995

RPI 1286

Notificação para pagamento de retribuição

#13.1

04/18/1995

RPI 1272

Deferimento

#9.1

12/13/1994

RPI 1254

Exigência - art. 36 da LPI

#6.1

08/09/1994

RPI 1236

Solicitação de exame técnico

#4.1

06/15/1993

RPI 1176

Publicação do pedido de patente

#3.1

02/13/1991

RPI 1054

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